1N4728A_S00Z

Overview

The onsemi 1N4728A_S00Z is a silicon Zener diode designed for voltage regulation and protection applications. It features a nominal Zener voltage of 3.3V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1W at an ambient temperature of 25°C. It utilizes the DO-41 axial leaded package, which provides hermetically sealed glass construction. The component operates within a junction temperature range of -65°C to +200°C and includes oxide passivated die technology for reliability.

Feature Summary

• Hermetically sealed glass construction for environmental stability
• Oxide passivated die technology for enhanced reliability
• Axial leaded DO-41 package design

Applications

• Voltage regulation circuits
• Overvoltage protection
• Clipping circuits

Procurement Notes

Verify that the specific suffix _S00Z corresponds to the standard tape-and-reel packaging configuration for this part number. Confirm RoHS compliance status directly with onsemi documentation, as historical data indicates variations in compliance across different manufacturing runs and suffixes for this series.

Selection Notes

Select this component when a stable 3.3V reference is required in high-power applications up to 1W. Ensure the circuit design accounts for the ±5% voltage tolerance. Verify that the operating environment does not exceed the specified junction temperature limits of 200°C during peak load conditions.

Part Context

This component belongs to the 1N4728A series of one-watt silicon Zener diodes manufactured by onsemi. The series covers a wide voltage range from 3.3V to 100V. The 1N4728A variant specifically targets low-voltage regulation needs within this power class.

Replacement Considerations

Compatible substitutes include the Vishay 1N4728A and Panasonic ERZ-E033B. These parts share identical electrical ratings and DO-41 package dimensions, allowing for direct pin-to-pin replacement in existing designs.